Is there objective Truth?

[Arkilogue]

That's true.

Here's another certainty: Nothing happened before time.

What about in an undifferentiated existence in which there is no movement. There is duration of substance but no change/movement by which time could be observed/recorded.

As soon as the substance moves to create space within itself for little bits of itself to move/orbit within, relative time begins. Before the existence of voided space is non-relative time in an eternal homogeneous substance.